Desired tension in an open belt drive system can be maintained (without changing center to center distance between two pulley)by using
A)ldler pulley. B)slide rail
C) Tilting angle. D)none of the above

1 Answer

Answer :

A)ldler pulley

Related questions

Description : Belt Tension can be adjusted by a. idler pulley b. slide rails c. tilting plate drive d. all the above

Last Answer : d. all the above

Description : Function of idler pully are a. to increase the angle of contact of belt on pully b. maintain belt tension as belt stretches c. canter to centre distance remain same d. all the above

Last Answer : d. all the above

Description : V -belt are most suitable for a. less space requirements b. use with adjustable pulley foe speed change c. both (a) and (b) d. none of the above

Last Answer : c. both (a) and (b)

Description : Smaller tension ratio result in.... (a) Unnecessary high tension in belt (b) Reduction in belt life (c) Both (c) & (b) (d) Excessive belt slippage

Last Answer : (c) Both (c) & (b)

Description : 310- Larger tension ratio result in... (a) Unnecessary high tension in belt (b) Reduction in belt life (c) Excessive belt slippage (d) Increase belt life

Last Answer : (c) Excessive belt slippage

Description : V-belt drive transmission system is used when it is designed to achieve a) High speed ratio b) Space requirements are limited c) Both (a) and (b) d) None of the above

Last Answer : c) Both (a) and (b)

Description : Lewis formula is used in the design of a) gears b) clutch c) chain drive d) belt drives

Last Answer : a) gears

Description : When V-belt drive is used a safety device, its performance is affected by a) Variation in belt tention b) Increase in coefficient of friction as belt slippage increase c) Both (a) and (b) d) None of the above

Last Answer : c) Both (a) and (b)

Description : When frequency of occurrence of overload is less and magnitude of overload is also less than safety device used is a) Safety jump clutch b) Shear device c) Frictional device d) V-belt drive

Last Answer : a) Safety jump clutch

Description : When frequency of occurrence of overload is less but the mangnitude of overload is large than safety device used is: a) Safety jump clutch b) Shear device c) Frictional device d) V-belt drive

Last Answer : b) Shear device

Description : Length of open belt is given by formula a. L=[2C+( 2) (DI+D2)] + [ /4C] b. L=[2C+( 2) (DI+D2)] + [ /4C] c. L=[2C+( 2) (DI+D2)] + [ ] d. L=[2C+( 2) (DI D2)] + [ ]

Last Answer : a. L=[2C+( 2) (DI+D2)] + [ /4C]

Description : Tension on the slack side in chain drive is A)more than on tight side. B)less than on tight side. C)zero. D)equal to tight

Last Answer : C)zero

Description : Tension on slack side in case of chain drive a) Lesser than on tight side b) Greater than on tight side c) Zero d) Equal to that on tight side

Last Answer : c) Zero

Description : Center of resistence of a mould board plow less at distance equal to A. 1/4th the size of plow from the share wing B. 3/4th the size of plow from the share wing C. 2/3th the size of plow from the share wing D. 1/3th the size of plow from the share wing

Last Answer : B. 3/4th the size of plow from the share wing

Description : Dead furrow open furrow is called when plowing is done by (a) Center to side (b) side to center method (c) one way plowing (d) none of the above

Last Answer : (b) side to center method

Description : - Material used for hand slide is (a) chilled cast iron. (b) cast iron (c) mild steel. (d) gun metal

Last Answer : (c) mild steel

Description : .Increase length of a land slide of a one bottom right hand mould board plough will a) Increase the amount of offset on tractor b) Decrease the amount of offset c) No affect d) Affect Completely

Last Answer : c) No affect

Description : Slip of belt is responsible for A. Reduction is speed B. Reduction in power C. Reduction in belt life D. All of the above

Last Answer : D. All of the above

Description : What is the value for centrifugal torque for maximum power transmission in belt drives a) ½ maximum torque b) 2/3 maximum torque c) ¾ maximum torque d) None of the above

Last Answer : d) None of the above

Description : .308- Life expectancy of V-belt in farm machinery is about.... (a) 200-500 hrs (b) 1000-2000 hrs (c) 2000-5000hrs (d) 5000-10000hrs

Last Answer : (b) 1000-2000 hrs

Description : The formula for tension difference or effective pull, required to transmit the load at.... (a) (Tt-Ts)=1000(kw/V) (b) Tt/Ts=c^ke (c) (Tt-Ts)= 1000(Hp/V) (d) None of the above

Last Answer : (a) (Tt-Ts)=1000(kw/V)

Description : Gears are used for: a)changing the speed rotation b)changing direction of rotation c)changing direction of shafting d)all of the above

Last Answer : d)all of the above

Description : nging the speed of feed mechanism (b) The number of knives on feed mechanism (c) Changing speed of cutter head (d) All of the above

Last Answer : (d) All of the above

Description : belt of silk runs over two metal pulleys, one of which is surrounded by a hollow metal sphere. Two electrodes, in the form of comb-shaped rows of sharp metal points, are positioned ... potential is applied to the upper pulley. A simple version of which equipment is being described here?

Last Answer : Van de Graaff generator.

Description : Back furrow is caused while plowing is done (a)center to side (b) side to center (c)one way plowing. (c) none of the above

Last Answer : a)center to side

Description : Worm gear are used for transmitting power between two Shaft Inclined at e. At right angle to each other and axes can intersect f. At right angle to each other but axis cannot intersect each other g. At right angle to each other and in different planes h. None of the above

Last Answer : f. At right angle to each other but axis cannot intersect each other

Description : Spiral gear are used for transmitting power between two shaft Inclined at a. Right angle to each other and axes can intersect b. Right angle to each other and axes cannot intersect c. At angle slightly lesser or greater than 90 of axles can meet d. None of the above

Last Answer : c. At angle slightly lesser or greater than 90 of axles can meet

Description : In an offset disc harrow the angle between two gang is a) less than 90 degree b) 90 degree c) greater than 90 degree d) 180degree

Last Answer : a) less than 90 degre

Description : Worm gears are used for transmitting power between two shafts a)at right angle to each other and cannot intersect each other b) at right angle to each other and can intersect each other c)at angle to each other d)shafts on different plane

Last Answer : a)at right angle to each other and cannot intersect each other

Description : Spiral gear Is used to transmit power between two shafts place at: a)An angle to each other b)In different planes c)Both(a)and(b) d)None of the above

Last Answer : c)Both(a)and(b)

Description : swirl plate in the cone nozzle is provided to. a. Impart rotational motion to the liquid passing through it. b. To increase the droplet size. c. To decrease the droplet size. d. To increase the spray angle.

Last Answer : a. Impart rotational motion to the liquid passing through it.

Description : Flooding nozzle have spray angle a) 100-150 b) 90-100 c) 60-95 d) 30-45

Last Answer : a) 100-150

Description : Spary angle for fan nozzle and hollow cone nozzle a) 40-50 b) 50-60 c) 60-95 d) 100-150

Last Answer : c) 60-95

Description : Hollow cone nozzles employed on boom type of sprayers have spray angle between : A .30-60° B.40-60° C.60-95° D.100-150°

Last Answer : C.60-95°

Description : Durability of the fertilizer increases with a) Increase in the kinetic angle of repose b) Decrease in the kinetic angle of repose c) Decrease in the speed of the forward travel d) None of the above

Last Answer : b) Decrease in the kinetic angle of repose

Description : In a disc plough with the increase in the disk angle, the transverse component of reaction will a)Increase b) Decrease c) Unaffected d) None of the above

Last Answer : a)Increase

Description : Width of cut of disc plow is increased by a)Increasing disc angle b)Increasing tilt angle c)addition of more weight d)Decreasing disc angle

Last Answer : a)Increasing disc angle

Description : The depth of penetration of a disc harrow is increased by: a) Tilt angle b) Gang angle c) Disc angle d) All of above

Last Answer : b) Gang angle

Description : Disc angle adjustment influences: a. Depth of cut b. width of cut c. Soil break up d. Direction of travel

Last Answer : b. width of cut

Description : Spray Angle for fan nozzles and hollow cone nozzle a) 40-50 b) 50-60 c) 60-95 d) 100-150

Last Answer : c) 60-95

Description : .Large tilt angle best for a) Hard soil b) Sticky and non-scouring soil c) Dry and cemented soil d None of the above

Last Answer : b) Sticky and non-scouring soil

Description : Penetration of disc plough can be improved by a) Increase disc angle b) Decreasing tilt angle c) Both (a) and (b) d) None of the above

Last Answer : b) Decreasing tilt angle

Description : Scouring will occur as long as a) Frictional resistance at soil tool interface is less than the resistance at parallel soil-soil inter face b) Frictional resistance at soil tool interface is more than ... c) Soil-metal friction is more than angle of soil shearing resistance d) None of the above

Last Answer : a) Frictional resistance at soil tool interface is less than the resistance at parallel soil-soil inter face

Description : Connecting rod generally have A)t-shape b)angle shape C)i-shape d)flst-shape

Last Answer : C)i-shape

Description : Thegroundwave eventuallydisappears, as onemoves awayfromthetransmitter, because of a. interference from the sky wave b. loss of line-of-sight conditions c. maximumsingle-hop distance limitation d. tilting

Last Answer : d. tilting

Description : Distancesnearthe skip distance should beused forthe sky-wave propagation a. to avoid tilting b.topreventsky-wave andupper rayinterference c. to avoid the Faraday effect d. so as nor to exceed the critical frequency

Last Answer : b.topreventsky-wave andupper rayinterference

Description : A 5 kilogram mass is lifted at constant velocity from a shop floor by a rope that passes through a pulley attached to the shop's ceiling. Neglecting the mass of the rope and friction in the pulley, what is the approximate tension in the rope? w) 100 newtons x) 50 newtons y) 25 newtons z) 5 newtons

Last Answer : ANSWER: X -- 50 NEWTONS

Description : Hook link chains are a)suitable for external drive exposed atmosphere b)made of meabble iron c)used where power requirement is low and speed is low d)All of the above

Last Answer : d)All of the above

Description : In comparison to jump clutchs, advantages of the friction safety clutches is/are a) More consistent break away torque b) No damageing peak during slippage c) Protecting a drive from high freuency peak torque (2-3 time normal values) d) All of the above

Last Answer : d) All of the above

Description : Differential lock offers advantage of A. Better drawbar pull when drive wheel are under different conditions B. Easier to plant in straight rows C. Reduces stearing effort and side draft when operating with certain implements D. All of the above

Last Answer : D. All of the above